Exclusive Leak: Zen 4 + Zen 4c Core Revealed! AMD Phoenix 2 CPU Mold with Massive L3 Cache

There have been persistent rumors over the past six months that AMD is planning to release a cutting-edge APU that combines the powerful Zen 4 and energy-efficient Zen 4c processor cores, similar to Intel’s P+E hybrid architecture.

It appears that the launch date is fast approaching. A well-known hardware leakster, @9550pro, recently shared a render of the next-generation AMD Phoenix 2 APU, showcasing its innovative design.

It features a 2+4 core, 12-thread configuration, which includes two high-performance Zen 4 cores, four smaller Zen 4c cores, and a massive integrated graphics processing unit.

The image displays a sizeable L3 cache situated in the middle, surrounded by the two Zen 4 cores, four Zen 4c cores, and a substantial dedicated graphics card.

Additionally, there are several DDR5/LPDDR5 memory interface options on the upper portion of the processor, and Physical interfaces such as PCIe and USB are located on the bottom, left, and right-hand sides.

These processor cores are noticeably smaller compared to earlier versions, indicating that AMD intends to market the Phoenix 2 as an affordable, entry-level APU targeting budget-friendly laptops.

While specific details regarding AMD’s modifications to achieve this compact form factor remain unknown, further information will likely become available when AMD formally introduces the new models sometime soon. Speculation suggests they could be part of the upcoming Ryzen 8000 series releases in 2024.

amd zen4c architecture

Back in May 2022, AMD introduced the 7040U series of processors, encompassing four different models ranging from four to eight cores, including the quad-core R3 7440U, hexa-core R5 7640U, and octa-core R5 7540U.

Subsequently, AMD verified to xda-developers that they indeed offer a six-core APU, specifically designed for their 7440U model. Despite a lack of formal confirmation from AMD, rumors persist that the six-core APU utilized in the 7440U is none other than the highly anticipated Phoenix 2 processor.

Another internet source previously shared images of the Phoenix 2’s appearance, and according to various leakers, this chip will boast two robust Zen 4 cores and four efficiency-oriented Zen 4c cores, yielding a total of six cores and twelve threads.

AMD acknowledged that the Phoenix 2 is more than merely a scaled-down version of their existing Phoenix product; they also disclosed that it would undergo significant adjustments concerning CPU, GPU, and even AI capabilities.

Initial reports indicated that the Phoenix 2 might power both the Ryzen 3 7440U and Ryzen 5 7540U, but AMD clarified that the latter is not based on an identical design. They specified that the 7440U is currently the only device using the Phoenix 2 processor.

amd phoenix 2 cores

It is worth mentioning that rumors hinted at the presence of the Phoenix 2 in the Ryzen 5 7540U, though AMD dismissed those claims.

Previous speculation suggested that “Phoenix 2” would combine two potent Zen4 cores along with four battery-efficient Zen4C cores for background task processing.

Furthermore, the RDNA 3 GPU saw a reduction from six WGP (12 CU) to two (4 CU), resulting in a TDP decrease to a maximum of 28W, down from “35W+”. Notably, details about the Phoenix “hybrid structure” processor first surfaced in AMD’s official documentation in March.

This processor correlates to the Phoenix 2 mobile APU, utilizing the TSMC N4 process, possessing a 15–28W power consumption, and catering to devices such as slender laptops and gaming consoles.

As depicted in AMD’s official presentation, the Zen 4c and Zen 4 exhibit comparable performance indicator levels. Their fundamental differences arise from the number of L3 cache Memory allocated to each core, with Zen 4 offering 4MB per core against Zen 4c’s 2MB.

According to AMD’s data, Zen 4c and Zen 4 share the same level of instructions executed per clock cycle since they share many essential elements, such as the Front execution stages, load/store components, and internal cache hierarchy.

Based on the information provided, it appears that the Phoenix 2 processor will offer improved performance and power efficiency compared to its predecessor. The new design featuring a combination of Zen 4 and Zen 4c cores, coupled with a more efficient GPU and AI enhancements, positions the Phoenix 2 as a promising solution for forthcoming laptop and console designs.

However, exact specifications and benchmark results remain uncertain until AMD divulges further details or presents an official introduction.  

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Aditya Nath Jha is an Engineer from New Delhi, India. His areas of interest include Gadgets, WordPress, speed optimization & latest technology. When he is not busy blogging he loves to write poetry, compose his own songs and has a taste for music! Find him on Facebook, Twitter, Linked in, Instagram. And watch his videos on YouTube.


Exclusive Leak: Zen 4 + Zen 4c Core Revealed! AMD Phoenix 2 CPU Mold with Massive L3 Cache

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